Effect of different herbicides on growth, yield and weed flora of onion (<i>Allium cepa</i>L.)

Kumar, Udit; Prasad, Birendra; Chandra, Girish

doi:10.5958/2230-7338.2014.00868.4

Cited by 3 publications

(2 citation statements)

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“…Moreover, the thinnest size of neck was observed from the treatment T 1 (0.80 cm) insignificantly followed by T 3 (0.84 cm), T 8 (0.85 cm), T 4 (0.91 cm), T 11 (0.91 cm), T 6 (0.92 cm) and T 9 (0.94 cm). The present finding concurs the finding of Kalhapure and Shete (2013), Vishnu et al (2015), Kumar et al (2014). They found that weed free plot or less weed density plot showed significantly highest neck length because there was less weed crop competition throughout crop growth period.…”

Section: Effect Of Weed Management Practices On the Growth And Development Of Onionsupporting

confidence: 92%

Effect of integrated weed management practices on the growth, yield, quality and economic of onion (Allium cepa L.)

Khan

Rahman²,

Mou

2021

Arch. Agric. Environ. Sci.

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A field study was conducted at research field of Spices Research Sub-Centre (SRSC), Faridpur, Bangladesh to find out the efficacy of weed management practices on the growth, yield, quality and economics of onion with the variety BARI Piaz-6. Thirteen treatments such as: T1-control as check (no weeding), T2-weed free, T3-one hand weeding (HW) at 45 days after transplanting (DAT), T4-two HW at 25 and 45 DAT, T5-three HW at 25, 45 and 65 DAT, T6-pre-emergence (PE) spray of pendimethalin 33 EC @ 330g a.i/litre + one HW at 45 DAT, T7- PE spray of pendimethalin 33 EC @ 330g a.i/litre + two HW at 45 and 65 DAT, T8- post emergence (POE) spray of pendimethalin 33 EC @ 330g a.i/litre at 25 DAT + one HW at 65 DAT, T9- PE spray of oxyfluorfen 23.5 EC @ 235g a.i./litre + one HW at 45 DAT, T10- PE spray of oxyfluorfen 23.5 EC @ 235g a.i./litre + two HW at 45 & 65 DAT, T11- POE spray of oxyfluorfen 23.5 EC @ 235g a.i./litre at 25 DAT + one HW at 65 DAT, T12- PE spray of pendimethalin 33 EC @ 330g a.i/litre + POE spray of oxyfluorfen 23.5 EC @ 235g a.i./litre at 45 DAT + one HW at 65 DAT and T13- PE spray of oxyfluorfen 23.5 EC @ 235g a.i./litre + POE spray of pendimethalin 33 EC @ 330g a.i/litre at 45 DAT + one HW at 65 DAT were compared by randomized complete block design with three replications. The study revealed that the weed management treatments under the study significantly influenced all parameters except total soluble solid content of onion bulb. Weed density had reverse effect on growth, development and yield of onion. Among the weed’s infestation, Cyperus rotundus (55-60%), Echinochloa crusgalli (10-15%) and Chenopodium album (8-10%) were predominant. The highest weed density (137.25 weeds/m2) were recorded from the T1. The lowest weed density (15.24 weeds/m2) were observed from T13. The T3 had the least weed control efficacy (23.56%). The maximum fresh yield (19.49 t/ha) of onion bulb were obtained from T2 followed by T13 (19.31 t/ha). The highest benefit-cost ratio (2.19) was calculated from the T13 closely followed by T12 (2.18). From this study it was concluded that Pre-emergence application (PE) application of oxyflourfen or pendimethalin + post-emergence (POE) application of oxyflourfen or pendimethalin at 45 DAT (days after transplanting) + once HW (hand weeding) at 65 DAT and also PE of oxyflourfen or pendimethalin + twice HW at 45 & 65 DAT exhibited good performance to control weeds in onion field.

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Section: Effect Of Weed Management Practices On the Growth And Development Of Onionsupporting

confidence: 92%

Effect of integrated weed management practices on the growth, yield, quality and economic of onion (Allium cepa L.)

Khan

Rahman²,

Mou

2021

Arch. Agric. Environ. Sci.

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“…It might be due to less weed crop competition throughout crop growth period by manual weeding i.e., in T 1 ,which in turn maintain the soil fertility status by way of removing less plant nutrients through weeds and ultimately have favourable effect on growth parameters and yield attributes. These findings are in close proximity with the reports of [3,4,5] and [6] who worked with different crops.…”

Section: Growth and Yield Parameterssupporting

confidence: 90%

Performance of Different Herbicides on Weed Control in Onion (Allium cepa L.) and Its Effect on Economics

Kumari¹,

Kumar²,

Das³

et al. 2019

CJAST

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Onion is one of the most important vegetable in India. However, yields are generally low due to weeds problem which reduce onion yields. In order to evaluate various herbicides for weed control in onion, an experiment was conducted at Agricultural Research Institute, Patna under Bihar Agricultural University, Sabour, Bhagalpur during two consecutive rabi Season 2016-17 and 2017-2018.The experiment comprised 3 herbicides and were applied alone , their combinations ,hand weeded plot and a weedy check was also included. Thus the eight different treatments were: weed free throughout the all crop period, two hand weeding at 20 and 40 days after transplanting, glyphosate at the rate 1kg active ingredient /ha 15 days before transplanting, pendimethalin at the rate 1 kg active ingredient/ha as pre emergence i.e., 3 days after transplanting, oxyfluorfen at the rate 250 g active ingredient /ha as post emergence i.e. 30 days after transplanting, pendimethalin followed by oxyfluorfen, glyphosate followed by pedimethalin followed by oxyfluorfen and the control. Statistical analysis of the data showed that the hand weeded treatment had the lowest total dry weight of weeds (10.3g) and total fresh weight of weeds (29.4g) followed by combined application of glyphosate, pendimethalin and oxyfluorfen treated plot (12.7g) and (24.5g) as compared to the weedy check (45.8g) and (159.0g) respectively. Similarly, the maximum size of onion bulbs (62.5g), yield (281q/ha) was recorded in the hand weeded plots followed by the combined application of glyphosate, pendimethalin and oxyflurfen treated plot (61.9g and 268q/ha) as compared to weedy check (13.3g and 49q/ha). The highest cost benefit ratio was obtained in the treatment (where combinations of the 3 herbicides were applied i.e., (T7) due to low labour consumption as compared to weed free treatment (T1).

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Weed management in onion

Singh¹,

Shyam²,

Chaudhary³

et al. 2016

Ind. Jour. Weed Scie.

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Effect of different herbicides on growth, yield and weed flora of onion (Allium cepaL.)

Cited by 3 publications

References 0 publications

Effect of integrated weed management practices on the growth, yield, quality and economic of onion (Allium cepa L.)

Effect of integrated weed management practices on the growth, yield, quality and economic of onion (Allium cepa L.)

Performance of Different Herbicides on Weed Control in Onion (Allium cepa L.) and Its Effect on Economics

Weed management in onion

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